Perimeter Solutions, Inc. operates through two primary segments: Fire Safety and Specialty Products. The Fire Safety segment formulates and manufactures mission-critical fire management products, including long-term fire retardants, Class A and Class B firefighting foams, and water enhancers. Its flagship PHOS-CHEK brand is widely used by government agencies, including the U.S. Forest Service, for aerial and ground-based wildfire suppression. This segment also provides specialized equipment and logistics services to support firefighting operations globally. The Specialty Products segment historically focused on producing phosphorus pentasulfide (P2S5), a key chemical additive used in engine lubricants, pesticides, and mining applications. In January 2026, Perimeter significantly expanded this segment by acquiring Medical Manufacturing Technologies (MMT) for $685 million. MMT provides highly engineered machinery, aftermarket consumables, and services for the manufacturing of minimally invasive medical devices, diversifying Perimeter's revenue streams. Despite this diversification into medical manufacturing equipment, the majority of the company's revenue continues to be derived from its high-value specialty chemicals and fire safety solutions. Geographically, the company serves a global customer base with a strong presence in North America and Europe, operating from its headquarters in Clayton, Missouri.
